20028483901 has 2 divisors, whose sum is σ = 20028483902. Its totient is φ = 20028483900.

The previous prime is 20028483899. The next prime is 20028483929. The reversal of 20028483901 is 10938482002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19467504676 + 560979225 = 139526^2 + 23685^2 .

It is a cyclic number.

It is not a de Polignac number, because 20028483901 - 2¹ = 20028483899 is a prime.

It is a super-2 number, since 2×20028483901² (a number of 21 digits) contains 22 as substring.

Together with 20028483899, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20028483961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10014241950 + 10014241951.

It is an arithmetic number, because the mean of its divisors is an integer number (10014241951).

Almost surely, 2^20028483901 is an apocalyptic number.

It is an amenable number.

20028483901 is a deficient number, since it is larger than the sum of its proper divisors (1).

20028483901 is an equidigital number, since it uses as much as digits as its factorization.

20028483901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 20028483901 in words is "twenty billion, twenty-eight million, four hundred eighty-three thousand, nine hundred one".